CookingBrilliant

Cups to grams / Icing sugar

How many grams is half a cup of icing sugar?

Half a cup of icing sugar (powdered sugar) weighs

60g

That's 2.1oz. In a 250ml metric cup it's 63g.

This uses the US cup, the size American recipes mean. Half a cup is 118ml by volume.

Unsifted, straight from the packet. Sifted icing sugar is lighter: USDA gives 100g for a sifted cup.

Other amounts of icing sugar

Where these numbers come from

USDA FoodData Central, SR Legacy, food 19336: “Sugars, powdered”. USDA lists these household measures for it:

  • 1 cup unsifted = 120g
  • 1 cup sifted = 100g
  • 1 tbsp unsifted = 8g
  • 1 tsp = 2.5g

Fractions of a cup are the cup weight scaled down. Metric-cup figures assume a 250ml cup, and Australian tablespoons hold 20ml. Weights under 10g are rounded to 0.1g, everything else to the nearest gram. Full source list.